diff --git a/README.md b/README.md
index 97ffbcc..81e3830 100644
--- a/README.md
+++ b/README.md
@@ -67,6 +67,25 @@ smartdoc {
     include 'org.springframework.boot:spring-boot-starter-tomcat'
 }
 ```
+For the configuration of `configFile`, you can also dynamically override it through the `gradle` command line. Before version `3.0.3`, you can add dynamic configuration to get the `configFile` in `build.gradle`, for example:
+```groovy
+smartdoc {
+    configFile = project.hasProperty('smartdoc.configFile') ? file(project.getProperty('smartdoc.configFile')) : file("src/main/resources/smart-doc.json")
+}
+```
+After configuring, you can directly override it through the command line:
+```shell
+gradle smartdoc -Psmartdoc.configFile=src/main/resources/smart-doc.json
+```
+From version `3.0.3` onwards, the configuration of dynamically configuring `configFile` in `build.gradle` is very simple, and the plugin has the ability to completely override it.
+```groovy
+smartdoc {
+    configFile =  file("src/main/resources/smart-doc.json")
+}
+```
+After configuration, you can directly use `-Psmartdoc.configFile` to override it.
+
+
 For multi-module gradle projects, if you do not want to configure in each module, you can put the `smart-doc` plugin related configuration into subprojects.
 ```
 subprojects{
diff --git a/README_CN.md b/README_CN.md
index 46c60ef..08e153c 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -62,6 +62,26 @@ smartdoc {
     include 'org.springframework.boot:spring-boot-starter-tomcat'
 }
 ```
+对于`configFile`的配置，你也可以通过`gradle`命令行来动态覆盖。在`3.0.3`之前，
+可以在`build.gradle`中添加动态获取`configFile`的配置, 例如：
+```groovy
+smartdoc {
+    configFile = project.hasProperty('smartdoc.configFile') ? file(project.getProperty('smartdoc.configFile')) : file("src/main/resources/smart-doc.json")
+}
+```
+配置好后直接通过命令行覆盖：
+```shell
+gradle smartdoc -Psmartdoc.configFile=src/main/resources/smart-doc.json
+```
+在`3.0.3`之后，`build.gradle`中配置动态配置`configFile`很简单，插件完全具备覆盖的功能。
+```groovy
+smartdoc {
+    configFile =  file("src/main/resources/smart-doc.json")
+}
+```
+配置后直接使用`-Psmartdoc.configFile`即可覆盖
+
+
 对于多模块的`Gradle`，把`smart-doc`插件相关配置放到根目录`build.gradle`的`subprojects`中。
 
 ```
diff --git a/src/main/java/com/ly/doc/gradle/constant/GlobalConstants.java b/src/main/java/com/ly/doc/gradle/constant/GlobalConstants.java
index ba2765b..8f1602b 100644
--- a/src/main/java/com/ly/doc/gradle/constant/GlobalConstants.java
+++ b/src/main/java/com/ly/doc/gradle/constant/GlobalConstants.java
@@ -121,4 +121,6 @@ public interface GlobalConstants {
      */
     String SRC_MAIN_JAVA_PATH = "src/main/java";
 
+    String CONFIG_FILE = "smartdoc.configFile";
+
 }
diff --git a/src/main/java/com/ly/doc/gradle/task/DocBaseTask.java b/src/main/java/com/ly/doc/gradle/task/DocBaseTask.java
index 2879890..5d0e41f 100644
--- a/src/main/java/com/ly/doc/gradle/task/DocBaseTask.java
+++ b/src/main/java/com/ly/doc/gradle/task/DocBaseTask.java
@@ -56,12 +56,7 @@
 import java.net.URL;
 import java.nio.file.Path;
 import java.nio.file.Paths;
-import java.util.ArrayList;
-import java.util.Enumeration;
-import java.util.List;
-import java.util.Objects;
-import java.util.Set;
-import java.util.TreeMap;
+import java.util.*;
 import java.util.jar.JarEntry;
 import java.util.jar.JarFile;
 
@@ -99,7 +94,13 @@ public void action() {
         Set<String> includes = pluginExtension.getInclude();
         javaProjectBuilder = buildJavaProjectBuilder(project, excludes, includes);
         javaProjectBuilder.setEncoding(Charset.DEFAULT_CHARSET);
-        File file = pluginExtension.getConfigFile();
+        File file;
+        // Also configurable with Gradle or System Property: ${smartdoc.configFile}
+        if (project.hasProperty(GlobalConstants.CONFIG_FILE)) {
+            file = new File((String) project.findProperty(GlobalConstants.CONFIG_FILE));
+        } else {
+            file = pluginExtension.getConfigFile();
+        }
         if (Objects.isNull(file)) {
             file = new File(GlobalConstants.DEFAULT_CONFIG);
         }
@@ -130,7 +131,7 @@ public void action() {
     /**
      * Classloading
      *
-     * @return  JavaProjectBuilder
+     * @return JavaProjectBuilder
      */
     private JavaProjectBuilder buildJavaProjectBuilder(Project project, Set<String> excludes, Set<String> includes) {
         SortedClassLibraryBuilder classLibraryBuilder = new SortedClassLibraryBuilder();
@@ -146,10 +147,10 @@ private JavaProjectBuilder buildJavaProjectBuilder(Project project, Set<String>
             }
         }
         SourceSetUtil.getDefaultMainJava(project)
-            .ifPresent(src -> {
-                getLogger().quiet(MSG + src);
-                javaDocBuilder.addSourceTree(src);
-            });
+                .ifPresent(src -> {
+                    getLogger().quiet(MSG + src);
+                    javaDocBuilder.addSourceTree(src);
+                });
         loadSourcesDependencies(javaDocBuilder, project, excludes, includes);
         return javaDocBuilder;
     }